Capacitive discharge ignition with long spark duration

Details Capacitive discharge ignition with long spark duration Capacitive discharge ignition with long spark duration

1983-12-21

1985-09-03

Cox, Ronald B.

Internal-combustion engines

High tension ignition system

Additional spark energy supply

123599, 123149R, F02P 100

Patent

active

045385866

ABSTRACT:
A capacitive discharge ignition system wherein the transformer secondary is responsive to changing magnetic flux such that supplemental voltage, of magnitude in excess of the spark sustaining voltage for a relatively long time period, is induced in the secondary coil in timed relation to high voltage damped oscillatory voltages induced by capacitive discharge. The magnetically induced voltage combines with the discharge induced voltage to provide at least one pulse in excess of the spark ionization potential to initiate a spark, and, in cooperation with the secondary coil inductance, thereafter sustains the spark for the duration of the time period despite the remainder of the discharge induced voltages.

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